门式起重机是桥式起重机的一种变形。在港口,主要用于室外的货场、料场货、散货的装卸作业。它的金属结构像门形框架,承载主梁下安装两条支脚,可以直接在地面的轨道上行走,主梁两端可以具有外伸悬臂梁。门式起重机具有场地利用率高、作业范围大、适应面广、通用性强等特点,在港口货场得到广泛使用。起重机在搬运物料时,经历着上料、运送、卸料以及回到原处的过程.因此,起重机受的载荷是变化的,是一种间歇动作的机械.起重机一般由机械、金属结构和电气等三大部分组成,机械方面是指起升、运行、变幅和旋转等机构,即起重机一般是多动作的。
Abstract
Ga
ntry cra
ne is a deformatio
n of the bridge cra
ne. At the port, mai
nly used for outdoor freight yard, material goods market, the bulk cargo ha
ndli
ng operatio
ns. It's like the door-shaped metal structure framework, the mai
n beam u
nder the load of two-foot i
nstallatio
n, you ca
n direct the grou
nd ru
n
ni
ng o
n the track, the mai
n beam at both e
nds may have protrudi
ng ca
ntilever Ga
ntry cra
ne with high utilizatio
n of space, the scope of operatio
ns, adapt to a wide ra
nge, high u
niversality, a
nd other characteristics of the port freight yard i
n widespread use. Cra
ne i
n the ha
ndli
ng of materials, experie
nci
ng the material, tra
nsportatio
n, u
nloadi
ng a
nd retur
n to the origi
nal process. Therefore, the cra
ne's load is subject to cha
nge, is a batch of mecha
nical moveme
nts. Cra
ne from the ge
neral machi
nery, electrical a
nd metal structure The three major compo
ne
nts, machi
nery is starti
ng up, operatio
n, ra
nge a
nd rotatio
n, a
nd other i
nstitutio
ns, that is ge
nerally more cra
ne moveme
nts. 目录 摘要1 Abstract 2 1前言5 1.1起重机的用途、工作特点及其对社会主义建设的意义5 1.2起重机发展史及其发展方向5 1.3起重机的主要参数7 2计算载荷和许用应力10 2.1载荷情况10 2.1.1 I类载荷(正常的载荷) 11 2.1.2 II类载荷(工作最大载荷) 11 2.1.3 III类载荷(非工作最大载荷) 12 3 ME80/10t+80t-30 m双梁门式起重机抗倾覆稳定性校核12 4 ME80/10t+80t-30m双梁门式起重机主梁强度、刚度校核15 4.1主要技术参数15 4.2主梁中间断面几何性质15 4.2.1计算惯性矩Ix、Iy 16 4.2.2计算桁架折算惯性矩I1、I2、I3和I4 17 4.3主梁的载荷、强度及刚度的计算17 4.3.1载荷计算17 4.3.2强度计算19 5 ME80/10t+80t-30m双梁门式起重机起升机构的校核21 5.1主起升机构的校核21 5.1.1主要参数21 5.1.2钢丝绳的选择21 5.1.3钢丝绳的校核23 5.1.4钢丝绳偏角的校核23 5.1.5钢丝绳的长度计算: 24 5.1.6吊钩的选用: 24 5.1.7电动机的校核: 25 5.1.8减速器的校验27 5.1.9制动器的校核27 5.1.10联轴器的校验: 28 5.2副起升机构的校核28 5.2.1主要参数28 5.2.2钢丝绳的校核29 5.2.3钢丝绳偏角的校核29 5.2.4电动机的校核: 30 5.2.5减速器的校验31 5.2.6制动器的校核32 5.2.7联轴器的校验: 33 6 ME80/10t+80t-30m双梁门式起重机小车运行机构的校核33 6.1主要参数34 6.2运行阻力的计算34 6.3电动机的验算36 6.4减速器的校验39 6.5制动器的校核40 6.6联轴器的校核41 7 ME80/10t+80t-30m双梁门式起重机大车运行机构的校核41 7.1主要参数41 7.2运行阻力的计算42 7.3电动机的验算43 7.4减速器的校核46 7.5制动器的校核: 46 7.6联轴器的校核46 致谢48 参考文献49
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ntry cra
ne is a deformatio
n of the bridge cra
ne. At the port, mai
nly used for outdoor freight yard, material goods market, the bulk cargo ha
ndli
ng operatio
ns. It's like the door-shaped metal structure framework, the mai
n beam u
nder the load of two-foot i
nstallatio
n, you ca
n direct the grou
nd ru
n
ni
ng o
n the track, the mai
n beam at both e
nds may have protrudi
ng ca
ntilever Ga
ntry cra
ne with high utilizatio
n of space, the scope of operatio
ns, adapt to a wide ra
nge, high u
niversality, a
nd other characteristics of the port freight yard i
n widespread use. Cra
ne i
n the ha
ndli
ng of materials, experie
nci
ng the material, tra
nsportatio
n, u
nloadi
ng a
nd retur
n to the origi
nal process. Therefore, the cra
ne's load is subject to cha
nge, is a batch of mecha
nical moveme
nts. Cra
ne from the ge
neral machi
nery, electrical a
nd metal structure The three major compo
ne
nts, machi
nery is starti
ng up, operatio
n, ra
nge a
nd rotatio
n, a
nd other i
nstitutio
ns, that is ge
nerally more cra
ne moveme
nts. 目录 摘要1 Abstract 2 1前言5 1.1起重机的用途、工作特点及其对社会主义建设的意义5 1.2起重机发展史及其发展方向5 1.3起重机的主要参数7 2计算载荷和许用应力10 2.1载荷情况10 2.1.1 I类载荷(正常的载荷) 11 2.1.2 II类载荷(工作最大载荷) 11 2.1.3 III类载荷(非工作最大载荷) 12 3 ME80/10t+80t-30 m双梁门式起重机抗倾覆稳定性校核12 4 ME80/10t+80t-30m双梁门式起重机主梁强度、刚度校核15 4.1主要技术参数15 4.2主梁中间断面几何性质15 4.2.1计算惯性矩Ix、Iy 16 4.2.2计算桁架折算惯性矩I1、I2、I3和I4 17 4.3主梁的载荷、强度及刚度的计算17 4.3.1载荷计算17 4.3.2强度计算19 5 ME80/10t+80t-30m双梁门式起重机起升机构的校核21 5.1主起升机构的校核21 5.1.1主要参数21 5.1.2钢丝绳的选择21 5.1.3钢丝绳的校核23 5.1.4钢丝绳偏角的校核23 5.1.5钢丝绳的长度计算: 24 5.1.6吊钩的选用: 24 5.1.7电动机的校核: 25 5.1.8减速器的校验27 5.1.9制动器的校核27 5.1.10联轴器的校验: 28 5.2副起升机构的校核28 5.2.1主要参数28 5.2.2钢丝绳的校核29 5.2.3钢丝绳偏角的校核29 5.2.4电动机的校核: 30 5.2.5减速器的校验31 5.2.6制动器的校核32 5.2.7联轴器的校验: 33 6 ME80/10t+80t-30m双梁门式起重机小车运行机构的校核33 6.1主要参数34 6.2运行阻力的计算34 6.3电动机的验算36 6.4减速器的校验39 6.5制动器的校核40 6.6联轴器的校核41 7 ME80/10t+80t-30m双梁门式起重机大车运行机构的校核41 7.1主要参数41 7.2运行阻力的计算42 7.3电动机的验算43 7.4减速器的校核46 7.5制动器的校核: 46 7.6联轴器的校核46 致谢48 参考文献49
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